Upper template band-type brake mechanism

Abstract

The invention relates to an upper die plate band-type brake mechanism which comprises at least one clamping assembly, each clamping assembly comprises a first clamping block, a second clamping block, a synchronous gear and a fixing plate, the fixing plates are installed on an upper die plate, and the fixing plates are limited on the first clamping blocks and the second clamping blocks to move on the upper die plate; the first clamping block and the second clamping block are located on the two sides of the stud correspondingly and move oppositely so as to be away from or close to each other, a first thread is arranged on the side, close to the stud, of the first clamping block, a second thread is arranged on the side, close to the stud, of the second clamping block, and the first thread and the second thread are both matched with external threads of the stud. The synchronous gear is meshed with the first tooth part on the first clamping block and the second tooth part on the second clamping block at the same time; the power part is arranged on the upper die plate and used for driving the first clamping block to move; and the connecting bracket is connected between the power part and the first clamping block.

Description

Technical Field

[0001] The present application belongs to the technical field of mold injection molding equipment, and in particular, relates to an upper mold plate brake mechanism. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by methods such as injection molding, blow molding, extrusion, die casting or forging, smelting, and stamping. Molds are usually composed of an upper mold and a lower mold. An upper mold is installed on a vertical mold injection device or a vertical mold trial device. The upper mold can be moved vertically on the equipment to lift and lower the upper mold to achieve the result of mold closing or mold opening. After the heavy upper mold rises, the upper mold is stopped by pulling or holding it with a cylinder. Not only is it not safe enough, but it is also easy to cause long-term stress damage to the cylinder. For this reason, it is necessary to design a mechanism to limit the upper mold, which is the problem to be solved in this application. Summary of the invention

[0003] In order to overcome the problems existing in the related art, the present application aims to provide an upper template brake mechanism, which has the advantages of rapid brake locking and high bearing force.

[0004] The present application is implemented through the following technical solutions.

[0005] The technical solution is to provide an upper template brake mechanism for limiting the upper template on the stud, including

[0006] At least one clamping assembly, the clamping assembly includes a first clamping block, a second clamping block, a synchronous gear and a fixed plate, the fixed plate is installed on the upper template, the fixed plate is limited to the first clamping block and the second clamping block to move on the upper template, the first clamping block and the second clamping block are respectively located on both sides of the stud and move towards each other to move away from or approach each other, the first clamping block is provided with a first thread on the side close to the stud, the second clamping block is provided with a second thread on the side close to the stud, the first thread and the first thread are both matched with the external thread of the stud, the synchronous gear is provided on the fixed plate, and the synchronous gear is meshed with the first tooth portion on the first clamping block and the second tooth portion on the second clamping block at the same time;

[0007] A power component provided on the upper template, the power component is used to drive the first clamping block to move;

[0008] A connecting bracket connected between the power component and the first clamping block, wherein the connecting bracket is also connected between a plurality of the first clamping blocks to achieve synchronous movement of the first clamping blocks.

[0009] The brake mechanism of the present technical solution has a first clamp block and a second clamp block that are linked via a synchronous gear. The first clamp block and the second clamp block react quickly and move synchronously. The structure is force-balanced and can withstand large forces. The clamping force between the first clamp block and the second clamp block is twice the driving force of the power component, and has good stability.

[0010] In one or more embodiments, the fixing plate is provided with a through hole for the stud to pass through, and a sliding sleeve is provided on the inner wall of the through hole, and the sliding sleeve is slidably matched with the stud.

[0011] In one or more embodiments, the first clamp block and the second clamp block are arranged in the installation cavity of the upper template, the fixed plate is arranged above the installation cavity, one end of the synchronous gear is rotatably arranged on the fixed plate, and the other end is rotatably arranged on the bottom surface of the installation cavity.

[0012] In one or more embodiments, the upper surface of the first clamping block is in sliding contact with the inner surface of the fixing plate, and the lower surface thereof is in sliding contact with the bottom surface of the mounting cavity.

[0013] In one or more embodiments, the upper surface of the second clamping block is in sliding contact with the inner surface of the fixing plate, and the lower surface thereof is in sliding contact with the bottom surface of the mounting cavity;

[0014] In one or more embodiments, the first clamping block is provided with two first arms toward the second clamping block, the inner surface of the first arm is provided with the first tooth portion, the second clamping block is provided between the two first arms, and the synchronous gear is provided between the first arm and the second clamping block.

[0015] In one or more embodiments, the first clamping block is provided with two second arms facing the first clamping block, and the second clamping block is provided with a sliding groove that cooperates with a sliding block of the second arm.

[0016] In one or more embodiments, a first arc concave surface is provided on one side of the first clamping block facing the second clamping block, and the first thread is provided on the first arc concave surface.

[0017] In one or more embodiments, a second arc concave surface is provided on one side of the second clamping block facing the first clamping block, the second thread is provided on the second arc concave surface, and the first arc concave surface and the second arc concave surface are combined to form an internal threaded hole for the stud to pass through.

[0018] In one or more embodiments, there are multiple clamping assemblies, and the connecting bracket includes a first bracket and a connecting rod. The first bracket is connected between the power component and at least one of the first clamping blocks, and the connecting rod is connected between adjacent first clamping blocks.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0021] Figure 1 It is a three-dimensional schematic diagram of a mold duplication, mold turning and mold trialing integrated machine shown in one embodiment of the present application.

[0022] Figure 2 It is a schematic diagram of the installation of the brake mechanism and the upper template shown in one embodiment of the present application.

[0023] Figure 3 It is an exploded schematic diagram of a brake mechanism shown in an embodiment of the present application.

[0024] Figure 4 It is a cross-sectional schematic diagram of a clamping assembly of a brake mechanism shown in an embodiment of the present application.

[0025] Description of reference numerals:

[0026] 11-frame; 111-stud; 12-upper template; 121-installation cavity; 13-power component; 14-connecting bracket; 141-first bracket; 142-connecting rod; 15-first clamping block; 151-first thread; 152-first tooth portion; 153-first support arm; 154-slide groove; 16-second clamping block; 161-second thread; 162-second tooth portion; 163-second support arm; 17-synchronizing gear; 18-fixed plate; 181-through hole; 19-sleeve. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in some embodiments of the present application to clearly and completely describe the technical solutions in some embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0029] like Figure 1 and Figure 2As shown in the figure, a mold-replicating, mold-turning and mold-trialing integrated machine is shown, including a frame 11, an upper template 12 and a brake mechanism, wherein the frame 11 includes four studs 111 with external threads, the upper template 12 is arranged on the studs 111 for vertical movement, and the upper mold is installed on the lower surface of the upper template 12. When the upper template 12 drives the upper mold to move upward to open the mold, the brake mechanism is required to lock the upper template 12 on the studs 111 to prevent the upper template 12 from sliding down.

[0030] like Figure 3 and Figure 4 As shown in , in this embodiment, the brake mechanism is used to limit the upper template 12 on the stud 111, and the brake mechanism includes four clamping assemblies, a power component 13 and a connecting bracket 14, wherein the number of the clamping assemblies is mainly set according to the number of the studs 111.

[0031] The clamping assembly includes a first clamping block 15, a second clamping block 16, a synchronous gear 17 and a fixed plate 18. The fixed plate 18 is installed on the upper template 12. The fixed plate 18 is limited to the first clamping block 15 and the second clamping block 16 moving on the upper template 12. The first clamping block 15 and the second clamping block 16 are respectively located on both sides of the stud 111 and move toward each other to move away from or approach each other. The first clamping block 15 is provided with a first thread 151 on the side close to the stud 111, and the second clamping block 16 is provided with a second thread 161 on the side close to the stud 111. The first thread 151 and the first thread 151 are both matched with the external thread of the stud 111. The synchronous gear 17 is provided on the fixed plate 18, and the synchronous gear 17 is meshed with the first tooth portion 152 on the first clamping block 15 and the second tooth portion 162 on the second clamping block 16 at the same time.

[0032] The power component 13 is arranged on the upper template 12, and the power component 13 can be selected as a cylinder. The power component 13 is used to drive the first clamping block 15 to move; the connecting bracket 14 is used to connect between the power component 13 and the first clamping block 15, and the connecting bracket 14 is also connected between the four first clamping blocks 15 to realize the synchronous movement of the four first clamping blocks 15.

[0033] The first clamp block 15 and the second clamp block 16 of the brake mechanism are linked by a synchronous gear 17. The first clamp block 15 and the second clamp block 16 react quickly and move synchronously. The structure is force-balanced and can withstand large forces. The clamping force between the first clamp block 15 and the second clamp block 16 is twice the driving force of the power component 13, and has good stability.

[0034] In this embodiment, the fixing plate 18 is provided with a through hole 181 for the stud 111 to pass through, and a sliding sleeve 19 is provided on the inner wall of the through hole 181, and the sliding sleeve 19 is slidably matched with the stud 111. The through hole 181 on the fixing plate 18 is only used for the stud 111 to pass through, and the sliding sleeve 19 is provided in the through hole 181 to reduce the friction with the stud 111 and increase the stability of the movement of the upper template 12.

[0035] In this embodiment, the first clamp block 15 and the second clamp block 16 are arranged in the installation cavity 121 of the upper template 12. The structure of the installation cavity 121 is set according to the structure of the clamping assembly. The fixed plate 18 is arranged above the installation cavity 121. The fixed plate 18 covers the installation cavity 121, and the first clamp block 15 and the second clamp block 16 are limited to move in the installation cavity 121. One end of the synchronous gear 17 is rotatably provided on the fixed plate 18 through a bearing, and the other end is rotatably provided on the bottom surface of the installation cavity 121 through a bearing. In this way, the two ends of the synchronous gear 17 are limited to rotate under the support of the fixed plate 18 and the upper template 12.

[0036] In this embodiment, the upper surface of the first clamping block 15 is in sliding contact with the inner surface of the fixing plate 18, and the lower surface thereof is in sliding contact with the bottom surface of the installation cavity 121. The upper surface of the second clamping block 16 is in sliding contact with the inner surface of the fixing plate 18, and the lower surface thereof is in sliding contact with the bottom surface of the installation cavity 121; thus, the first clamping block 15 and the second clamping block 16 can be limited to move on the installation cavity 121.

[0037] In this embodiment, the first clamping block 15 is provided with two first arms 153 toward the second clamping block 16, the inner surface of the first arm 153 is provided with a first tooth portion 152, the second clamping block 16 is provided between the two first arms 153, and the synchronous gear 17 is provided between the first arm 153 and the second clamping block 16. The first clamping block 15 is provided with two second arms 163 toward the first clamping block 15, and the second clamping block 16 is provided with a slide groove 154 that cooperates with the slider of the second arm 163. In this way, the first clamping block 15 and the second clamping block 16 are more closely matched, and the moving stability is enhanced.

[0038] In this embodiment, a first arc concave surface is provided on one side of the first clamping block 15 facing the second clamping block 16, and a first thread 151 is provided on the first arc concave surface. A second arc concave surface is provided on one side of the second clamping block 16 facing the first clamping block 15, and a second thread 161 is provided on the second arc concave surface. The first arc concave surface and the second arc concave surface are combined to form an internal thread hole for the stud 111 to pass through.

[0039] In this embodiment, the connecting bracket 14 includes a first bracket 141 and a connecting rod 142. The first bracket 141 is mainly connected between the power component 13 and two first clamping blocks 15, and the connecting rod 142 is connected between adjacent first clamping blocks 15. The four first clamping blocks 15 are made to move synchronously and rapidly through the connecting bracket 14. The power component 13 directly drives the first clamping blocks 15 without intermediate load driving, and the response is fast and the stability is good.

[0040] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An upper template brake mechanism, used to restrict an upper template (12) on a stud, characterized in that: include at least one clamping assembly, the clamping assembly comprising a first clamping block (15), a second clamping block (16), a synchronous gear (17) and a fixing plate (18), the fixing plate (18) being mounted on the upper template (12), the fixing plate (18) limiting the movement of the first clamping block (15) and the second clamping block (16) on the upper template (12), the first clamping block (15) and the second clamping block (16) being respectively located on both sides of the stud and moving towards each other to move away from or approach each other, the first clamping block (15) having a first thread disposed on a side close to the stud, the second clamping block (16) having a second thread disposed on a side close to the stud, the first thread and the first thread both matching with the external thread of the stud, the synchronous gear (17) being disposed on the fixing plate (18), the synchronous gear (17) simultaneously meshing with a first tooth portion on the first clamping block (15) and a second tooth portion on the second clamping block (16); a power component (13) disposed on the upper template (12), the power component (13) being used to drive the first clamping block (15) to move; A connecting bracket is connected between the power component (13) and the first clamping block (15), and the connecting bracket is also connected between a plurality of the first clamping blocks (15) to achieve synchronous movement of the first clamping blocks (15).

2. The upper template brake mechanism according to claim 1, characterized in that: The fixing plate (18) is provided with a through hole for the stud to pass through, and a sliding sleeve is provided on the inner wall of the through hole, and the sliding sleeve is in sliding cooperation with the stud.

3. The upper template brake mechanism according to claim 1, characterized in that: The first clamping block (15) and the second clamping block (16) are arranged in the installation cavity of the upper template (12), the fixing plate (18) is arranged above the installation cavity, one end of the synchronous gear (17) is rotatably arranged on the fixing plate (18), and the other end is rotatably arranged on the bottom surface of the installation cavity.

4. The upper template brake mechanism according to claim 3, characterized in that: The upper surface of the first clamping block (15) is in sliding contact with the inner surface of the fixing plate (18), and the lower surface thereof is in sliding contact with the bottom surface of the installation cavity.

5. The upper template brake mechanism according to claim 3, characterized in that: The upper surface of the second clamping block (16) is in sliding contact with the inner surface of the fixing plate (18), and the lower surface thereof is in sliding contact with the bottom surface of the installation cavity.

6. The upper template brake mechanism according to claim 1, characterized in that: The first clamping block (15) is provided with two first arms in the direction of the second clamping block (16); the first teeth are provided on the inner surfaces of the first arms; the second clamping block (16) is provided between the two first arms; and the synchronous gear (17) is provided between the first arms and the second clamping block (16).

7. The upper template brake mechanism according to claim 6, characterized in that: The first clamping block (15) is provided with two second supporting arms in the direction of the first clamping block (15), and the second clamping block (16) is provided with a sliding groove cooperating with a sliding block of the second supporting arm.

8. The upper template brake mechanism according to claim 1, characterized in that: A first arc concave surface is provided on one side of the first clamping block (15) facing the second clamping block (16), and the first thread is provided on the first arc concave surface.

9. The upper template brake mechanism according to claim 8, characterized in that: A second arc concave surface is provided on one side of the second clamping block (16) facing the first clamping block (15), the second thread is provided on the second arc concave surface, and the first arc concave surface and the second arc concave surface are combined to form an internal thread hole for the stud to pass through.

10. The upper template brake mechanism according to claim 1, characterized in that: There are multiple clamping assemblies, and the connecting bracket comprises a first bracket and a connecting rod. The first bracket is connected between the power component (13) and at least one of the first clamping blocks (15), and the connecting rod is connected between adjacent first clamping blocks (15).

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